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When Amazon's stock spiked, Jeff Bezos's net worth increased $13.2 billion in just 15 minutes. Also, 7 other things worth a click.

Jeff Bezos's net worth went up $13.2 billion in just 15 minutes last week.

I mentioned this in passing Friday, but it stuck with me over the weekend (and not for lack of other things going on). I think it’s worth a deeper look.

The boost is because of the increase in Amazon's stock of course: more than 7 percent in a single day as a result of an amazing …